Rich Lowry pretty much nails it.
Because what we always feared has happened -- an assassin has killed a strategically significant target. Bhutto's martyrdom will understandably obscure her misrule the first two times she was prime minister. But on her return, she was a frank voice against Islamism, and no one can deny her this: She was very brave.
Update: Two other widely divergent views representing two different agendas, here (Mansoor Ijaz) and here (Ralph Peters). They do help to round out a very complex picture.